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Flexible artificial lens accommodated by means of pressure or electrical condictivity

a flexible, artificial lens technology, applied in the field of artificial lenses, can solve the problems of fixed, unchangeable focal length of artificial lenses that have been used, and achieve the effect of reducing the number of artificial lenses used, and improving the quality of artificial lenses

Active Publication Date: 2017-03-28
CARL ZEISS MEDITEC AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides an artificial lens that can be used to adjust the power of accommodation in a person's eye. This is useful for people who need to wear glasses or contact lenses to correct their vision. The artificial lens has stabilization means that can make it easier to hold and use. These means can be made transparent, which helps to maintain the optical quality of the lens. However, non-transparent stabilization means can also be used as long as they do not negatively affect the function of the lens.

Problems solved by technology

Artificial lenses that have been used up until now, however, always have had a fixed, unchangeable focal length.

Method used

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  • Flexible artificial lens accommodated by means of pressure or electrical condictivity
  • Flexible artificial lens accommodated by means of pressure or electrical condictivity
  • Flexible artificial lens accommodated by means of pressure or electrical condictivity

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Embodiment Construction

[0086]First of all, a human eye 100 is shown in general form in FIG. 1. Behind the cornea 108 is found the iris 101 with the pupil 103. The pupil 103 lies in front of lens 102. The chamber of the eye is found between cornea 108 and iris 101. In the back part of the vitreous body 107 lies the retina 105. Extending from there are also the central conduits 104.

[0087]The width of accommodation of the eye decreases with increasing age in humans. The reduction in the power of accommodation is the cause of presbyopia. “Accommodation” generally means the adjustment of the eye to a specific distance. In the case of an eye with normal vision, in a position of rest, the far point lies at infinity. Accommodation is the capacity of the eye to image close-lying objects on the retina, with an increase in refractive power.

[0088]By means of exchanging the lens 102 for an artificial lens (lens implant) according to the present invention, as it will be described below on the basis of several embodimen...

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Abstract

An artificial lens for an eye (10) is described. According to the present invention, an artificial lens for an eye is now provided, in which the focal width can change. This is realized according to the invention by providing the artificial lens with two or more media (12, 13) that are flexible in shape as lens elements and that the two media that are flexible in shape stand in direct contact with one another. The media that are flexible in shape are preferably disposed in an uptake container forming a lens body (11).

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to an artificial lens for an eye, in particular, for a human eye.[0002]In eye surgery, special applications already exist, in which the lens of an eye is replaced by an artificial lens. In the case of so-called cataract surgery, a lens of the eye—which is clouded, for example, due to the cataract—is replaced by an artificial lens. The lens of the eye is found inside a thin envelope, the so-called lens capsule. In order to remove the ocular lens, access to it is created by a thin cut made in the lens capsule and the ocular lens is next broken up into small pieces with a microsurgical instrument, and then these pieces are removed by means of an aspirating device. Then an artificial lens is inserted.SUMMARY OF THE INVENTION[0003]Artificial lenses that have been used up until now, however, always have had a fixed, unchangeable focal length. The object of the invention is thus to create an artificial lens for an eye, in which...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): A61F2/16A61F2/00
CPCA61F2/1613A61F2/1635A61F2250/0018
Inventor OBREBSKI, ANDREAS
Owner CARL ZEISS MEDITEC AG